Photonic band gap crystals are being pursued for their great potential to govern the spontaneous emission of excited quantum emitters. Here, we study the radiative decay of excited PbS quantum dot nanocrystals inside 3D photonic band gap crystals made from silicon in the near-infrared. At frequencies just above the band gap, we observe 14x enhanced intensity from quantum dots inside the crystal compared to dots outside, indicative of strongly enhanced emission. Moreover, using time-resolved single photon counting, we observe fast non-exponential decay, which is consistent with probing an ensemble of quantum dots at varying depths in the nanopores, each experiencing a position-dependent enhanced local density of states.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.